It seems very likely to me that life, the human race, and the potentially infinite cosmos that surrounds us along with everything contained within, is the result of the most unimaginable cosmic accident. If there really is a God, he dropped a test tube somewhere.
No man is ever born with any kind of purpose in life. Some may be given a purpose at an early age by others, some may form some kind of objective based on their life events, many will never know what exctly to do with themselves. Life is only what you make of it.